GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.
18 providers
Model catalog
Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
36 providers
Cost-efficient GPT-5.6 model for fast, high-volume workloads
36 providers
Balanced GPT-5.6 model for capable, cost-efficient everyday work
35 providers
Default frontier GPT for coding, computer use, research, and knowledge work
46 providers
Chat-tuned GPT model for conversational assistance, writing, and tool workflows
7 providers
Deliberate o-series reasoner for hard math, coding, and multi-step analysis
20 providers
| Model | Creator | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|
| GPT-6 Astraopenai/gpt-6-astra | OpenAI |
1.05M | $10 | $50 | 2026-09-04 | ||
| GPT-5.6 Solopenai/gpt-5.6-sol | OpenAI |
1.05M | $4 | $20 | 2026-07-09 | ||
| GPT-5.6 Lunaopenai/gpt-5.6-luna | OpenAI |
1.05M | $0.2 | $1.2 | 2026-07-09 | ||
| GPT-5.6 Terraopenai/gpt-5.6-terra | OpenAI |
1.05M | $2 | $12 | 2026-07-09 | ||
| GPT-5.5openai/gpt-5.5 | OpenAI |
1.05M | $5 | $30 | 2026-04-23 | ||
| GPT-5.3 Chat (latest)openai/gpt-5.3-chat-latest | OpenAI |
128K | $1.75 | $14 | 2026-03-03 | ||
| o3openai/o3 | OpenAI |
200K | $2 | $8 | 2025-04-16 |